1. Aerospace Engineering Department(DIAS), University of Naples Federico , Via Claudio 21, Naples- 80125, Italy,
2. Aerospace Engineering Department(DIAS), University of Naples Federico , Via Claudio 21, Naples- 80125, Italy
3. Smart Structures Lab., The Italian Aerospace Research Centre (CIRA), Via Maiorise, Capua (CE) - 81043, Italy
4. Alenia Aeronautica S.p.a., Viale dell 'Aeronautica snc, Pomigliano d'Arco (NA) - 80038, Italy